Vacuum-walled refrigerator.



L. W. SEEMAN 6; J90. MORSE. v

VACUUM WALLBD' REFRIGERATOR.

APPLICATION FILED MAYM, 1913.

Patented Mar. 31,1914.

l' AND JAMES C. MORSE, OF FORT STEILACOOM, WASHINGTON.

llll Fllll-ZL ViiC'ETUM-VJALLED REFRIGERATQR.

Eycciflcation of Letters l ment.

Application filed May 14, 1913,

Patented Mar. 31, 1191 3.. Serial No. 767,637.

lie it known that in, l. :s'rim li'. SEEMAN :nnl JAWISS C. Blouse c.izcns cl. llie United hlulics, residing :11 Fold Slcilucoon'i, in thevouni'y of Pierce und Filnle of \Vushington, nivc iuvenlcil new unduseful linprovcnicnis in Vac-nunHVullcd ll-frigo2rutors of which thefollowing a specification.

'lflie inv ion l lnl'es generally to inin'evcincnis in 1'61). fmllfilsand. milieulci'ly l0 :1 l'QlFllgifl'fllOi' in which the heat insulatingproperlics ui'c obtained through the use of :1 Vacuum.

The invention is pul'llfilllzllly directed to ilie means for securing:the usual porcelain receptacle in {he iefi'i crater in lhe manner louiuii'iiziin an cll'eci'ive vacuum space be tween snid i'ecepiuvlc andthe body of the ref. 'giaia 'ior.

The invention in the preferred form of details will be illustrated inthe following specification, i'elci-ence being lnul particuin.

Fi gni'e l is u vcl'licn scciln through ll-c improved iQ'fllf lltllUlZFig.9 is a similar view lukcn iii s' ht c e to Fig Fig 3 u lioi'izuni'ulsection, 1 lg. (ls an cular geii broken sectional view illustrating ihemeans for securing;- the teiu'iinul. edges of the porcelain rcccpluclein place the door openir Fig. 2 plan 0 i: la sepzii'acoi". Fig". (3 is:1 side elevucion 0:: the sepaxeizo used for supporting the orcelaii ilining from the bodyllcferriit' peliculurly to he accompanying" dim theimproved refrigerator comprises; usual exltencr casing 1 0? wood, thepails f which may be connected zmd assembled in any desired manner. A 2,one or more a? the case may necl in the exi eior casing at Oll points.The casing i" ioelei ielly iliiclc ener' :is 1M1 1 y 01 mspcndicg lo thegreguic lmclznese of idle Wall of lbs 1 fim'cwizcr WllfifliCOlllplGiiEI-CL The surface of ijhew of the door opening are femoly ofthe usual stepped or c-her irregulai' formation esel 4, The door 5,which is hing cl and otherwise secured to the cusii'ag: in any desiredmanner has an edge iormziwalls oi the door opening, mid beyond said themetal lie edge forunilion is materially reduced in llllUlUlLSS toprovide aspace 6.

Secured to the interior of the casing throughout; the surface thereof,and to the interior of the $133139 6 of the door or doors is u lining 7preferably of sheet metal. This lining covers the interior surface ofthe refrigerator casing and doors except on the inner surface of therelatively thickened portions of the casing adjacent the door openingand of the corresponding portion of the door. The lining extendsthroughout the .lengih and breadth of that length of the thickenedportion at right angles to the wall of the refrigerator, as at 8, and inline with the inner surface of the enlargemcn'ts oi the casing and dooris bent 1211261" ally 0 provide a flange 9 which overlies the casingwall and the reduced wall of the door or doors.

A porcelain receptacle 10, made in sec lions and secured together at themeeting edges of such sections in any desired 01' goreferred manner issecured in place in spaced rclulion co the metal lining 7, porcelainreceptacle, which it will be 1271b derstood "forms the interior surfaceof ill: iefi'igei'atoi held, in spaced relation ing by what we termseparators comprising olicetc heads 11 including series of re members 12the-heads being connected. b & pin 13 joining their centers. Theliczitis are of light meml and the aggregate widlh of the separator cmresponds to the similar dimension of lice vacuum chamber, that is, thedistance Zietween the proximate surfaces of clue puree lain receplacleand metal lining, end edges of the particular scc'iions of the pores"lain receptacle terminatingucljecemfithe lai'gcmcnts of the casing anddeer are s lit ed beneath the flanges 9, as i l and appropriately scaleto said flanges.

Any desired means may be employed for exhausting the air from the spacebetween the porcelain receptacle and metal lining so as to provide incfi'eci, a. heat insulating space throughout practically .the fullinteric'r surface of the casing and doors.

In utilizing the porcelain receptacle as one wall of the vacuum chamber,We avoid the necessity of lhe usual sanitarylining which would otherwisebe additionally requiz-ed in the refrigerator, and by the use memes ofthe eeparators described, we provide a the termlnal edges of the porc lin" peubsmntial pressure resistmg interior wall tacle, belng eeeledbeneath smd flanges 15 for the vacuum chamber, as will be obvrous.whereby the all may be exhausted from ihe What is claimed as new ls:space between the metal lining and the '5 A refrigerator having an outercasing porcelamrecepta lfiprovided with a (1001 opening and an in n fieslmnny whereor we afiix our s1gna-- terior Wall corresponding in SIZE andshape $111763 1 p n 0i t O WIt'DESSB'S. fro the chmenslorrs DEE- theouter cas 1n g, sald LESTER W & SEEMAN mtcrlor Wall comprlsmg a, metallnung for JAMES MORSE.

10 the cuter casing and a porcelain receptacle held in spaced relationto the metal lining, Witnesses: said lining being formed adjacent thedoor Mrs. B TS OR McNUTr, opening with facerally projected flanges, Mrs,ARTHUR DAVISON.

